Baptists hilbert



(No Model.)

B. HILBERT.

LOOM. No. 561,110.

Patented June 2, 1896.

vjvwewfoz To all whom it may concern.-

. UNITED STATES PATENT ()FFICEQ BAPTISTE HILBERT, OF WORCESTER, MASSACHUSETTS.

LOOM.

SPECIFICATION forming part of Letters Patent No. 561,1 10, dated June 2, 1896.

Application filed April 29, 1892. Serial No. 431,372, (No model.)

Be it known that LBAPTISTE HILBERT, a citizen of the United States, residing at VVorcester,'in the county of Worcester and. State of Massachusetts, have invented a new and useful Improvement in the Shedding and Shuttle- BoX Mechanism for Looms, of which the fol lowing isa specification, reference being had to the accompanying drawings, in which- Figure lrepresents afront view of so much of the mechanism as embodies my invention. Fig. 2 represents the operating parts arranged in their respective relative positions with the transverse shafts shown in sectional view and with the position of the framework indicated by broken lines, and Fig. 3 denotes a top view of the transverse horizontal drivingshaft with the connected drivinggears and with the clutching mechanism by which'the shedding mechanism is connected and disconnected at will with the driving power.

Similar letters refer to similar parts in the several figures.

Referring to the drawings, A denotes a portion of the framework of a loom, showing that part in which the shedding mechanism is supported and in which is j ournaled the horizontal transverse shaft 13, connected by the beveled gear B, turning loosely on the shaft B, and a beveled gear B on the vertical shaft B with any of the rotating shafts of the loom, preferably with the crank-shaft by means of beveled gears upon the end of the crankshaft and the lower end of the vertical shaft B which are not, however, represented in the accompanying drawings, as their construction and arrangement will be well understood.

The beveled gear B is connected at will with the transverse driving-shaft B by means of clutch-teeth B upon the hub of the beveled gear B and the sliding collar 13, provided with clutch-teeth arranged to engage the teeth B The sliding clutching-collar B has a spline connection with the shaft B, and is engaged by a fork B attached to a sliding rod 13 The sliding rod B has an attached, collar B with a spiral spring B between the collar B and the framework A, by which the sliding clutching-collar B? is normally held in engagement with the clutch-teeth 13*. When it is desired to disconnect the shaft 13 from the driving power, the rod 13 is drawn in the direction of the arrow 1 by the knob B and the end of the pivoted lever B is inserted in the space B between the hub of the knob 13 and the frame A, thereby holding the clutching-collar B out of engagement with the clutch-teeth B and against the tension of the spring B Attached to the transverse shaft B is an eccentric gear O, arranged upon the back side of the framework and shown in top view in Fig. 3 and in elevation in Fig. 2. The eccentric gear C engages an eccentric gear 0, turning upon a stud 0 held in the framework of the loom and carrying upon its side the crank-plate 0 provided with a crank-pin G which is connected by the link C with the rocking arm C The oscillating arm C is attached to a transverse shaft C passing through the framework of the loom and having an oscillating arm C attached to its front end. By the rotation of 7 5 the crank-plate C an oscillating motion is given to the shaft 0 and arms C and C The oscillating arm C upon the rear side of the loom is connected by a link 0 with the sliding knife-bar 0 and the oscillating arm 0 upon the front of the loom is similarly connected by a link 0 with the sliding knifebar 0 In like manner the oscillating arms G and O are connected at their lower ends, by means of the links 0 upon the rear of the loom and 0 upon the front of the loom, with a sliding knife-bar C The sliding knife-bars C and C slide in slots C and C in the loom-frame placed side by side. Resting upon the fixed bar D and the pattern-chain E are a series of steel blades or jacks D, provided with the gearteeth D and having notches D D upon their upper and lower sides, by which they are engaged by the sliding knife-bars 0 and C 5 The sliding knife-bars O and C have a reciprocating motion back and forth in the slots 0 and 0 the upper knife-bar 0 serving to move the jacks D toward the right and the knife-bar 0 serving to draw the jacks D toward the left, the operation of the sliding knife-bars being as follows: Whenever the jacks D rest upon the bars of the patternchain, their notches are engaged by the sliding knife-bar C as it moves toward the left, causing all the depressed jacks to be carried along withthe knife-bar C as it moves toward the left or away from the patternehain, until it approaches the end of its movement, when the ends of the jacks are carried upon a bar D held in the framework of the loom and termed a clearer-bar, the roundedend of the jack causing it to be raised as it passes onto the clearer-bar 1) and thereby lifted out of engagement with the knife-bar C allowing the knife-bar C to return without engaging the jacks I), which rest upon the bar I) and are supported in a plane between the two knifebars 0' and 0. As the knife-bar 0 moves back toward the pattern-chain the knife-bar 0 moves outward over the jacks, and if it is desired to move the jacks toward the right upon the return movement of the sliding knife-bar U a roll I) is brought under the jack by the intermittent motion of the pattern-chain, causing the jack to be lifted and its upper notch engaged by the slidingknifebar C In this manner the jacks D are engaged by either the upperor the lower of the reciprocating knife-bars and moved across the fixed bar I).

Held in the framework is a fixed shaft F, upon which are placed the segmental gears F, each of which is provided with a crank-arm F to which is pivoted a link F", by which the crank-armis connected with the upright arm G of a bell-crank having a rocking motion about the fixed shaft G.

To the notched end G of the vertical arm G of the bell-crank is connected the harnessstrap G, passing over the guide-roll G, and being attached in the usual manner to the top of the harness-frame, and to the notched end G of the horizontal arm G of the bellcrank is connected the strap G which is carried around suitable guide-pulleys upon the floor and attached in the usual and wellknown manner to the under side of the harness-frame.

, In operation an oscillating motion is imparted to the shaft 0 and arms C 0 through the eccentric gears G O, by which a gradually-accelerated and gradual]y-retarded motion is imparted to the arms TC" and and a suitable period of rest or dwell is secured. The sliding knife-bars 0 and O impart a reciprocating motion to the jacks l) as they are severally engaged by theknifebars, and through the rack-teeth D a reciprocating rotary motion is given to the segmental gears F, by which the crank-arms F are thrown around the shaft F and brought alternately into contact with the rods 11 II. The rods H H are held in the framework of the loom and slightly below the shaft F, so that any strain exerted upon the crank-arms through the links F will tend to draw the crank-arms more firmly against the rods 11 H, and thereby hold the segmental gears F from rotating. The pattern-chain E is sup ported upon the rotating barrel I, carried upon a shaft J and driven from the shaft 13 by means of the spur J and notched wheel J, constituting the well known construction known as the Geneva-stop motion. Upon the shaft B is placed a gear J which is driven by a pinion J turning loosely upon a stud J and having connected witl1 its hub a handwheel J by which the pattern-chain maybe turned by the operator when the shaft 13 is disconnected from the beveled gear 13.

The notched wheel J has a clutched connection with the shaft J, carrying the pattern-chain, by which it is disconnected from the shaft J, which may then be turned by means of the hand-wheel J The hand-wheels J 6 and J are represented in Fig. 1. by broken lines. \Vhenever it is desired to bring all the threads in the Warp into the same plane, the toothed jacks 1) may be simultaneously raised, so as to be brought into engagement with the upper knife-bar C by means of the eccentric rotating blade K, journaled in the framework and operated by the leverhandle K, Fig. 1, thereby causing all. the jacks D to be moved toward the right and rotating all the gears 1 toward the left. The shaft J, Fig. 3, also carries a barrel. ill to receive a shuttle-box pattern-chain, by which a separate series of toothed jacks can be brought into engagement with the sliding knife-bars l and O, by which segmental gears provided with crank-arms, as already described, and connected oscillating bellcranks can be connected through intermediate mechanism with the shuttle-boxes.

The frame A above the slot (1 is made in a separate piece a, which is attached to a flat blade-spring Z1, having its end attached to the framework A in order to allow the movable portion a of the frame to be raised in case the sliding knife-bar C should be lifted by the jacks out of its normal position. The lifting of the sliding knife-bar C is liable to occur when the jacks are raised by the cocentric rotating blade K,and the sliding knifebar C is moved by means of the hand-wheel. J causing the sliding knife-bar C to slide over the upper edges of the jacks before ongaging D \Vhenever this occurs, the sliding knife-bar C is necessarily lifted from its normal position, thereby raising the bar a and lifting the spring I), which returns the bar a to its proper position, as shown in Fig. 1, as soon as the sliding knife-bar G has ontered the notch C of the toothed jacks.

Each of the harness-frames is connected by straps G and G with the vertical arms G and horizontal 'arms (l of the bell-cranks, which are rocked about the fixed shaft G by means of the angular motion of the crank-arms 1i and connecting-links F and by varying the length of the crank-arms Fflmakin g the crankarm of the first or front segmental gear the shortest and gradually increasing the length of each succeeding crank-arm, I gradually increase the rocking motion of the bell-cran ks from the front rearward, producing an a11- I gular shed and allowing the vertical and horizontal arms G G6 to be of uniform length.

The bell-cranks to which the harness-straps G and G are attached are provided with hooked or open bearings 0, allowing each of the bell-cranks to be individually lifted out of engagement with the shaft G. When placed in position upon the shaft G, as shown in Fig. 2, they are locked in position by a plate d, attached to a rotating spindle e, which is journaled in the framework of the loom at f, Fig. 1.

The spindle e is rocked in its bearings, raising the plate cl out of contact with the bellcranks and permitting them to be lifted off the shaft G.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a loom shedding mechanism, the combination of a series of pivoted levers operatively connected with the harness-frames, segmental gears capable of an oscillating movement through an arc greater than a half-revolution, radial arms projecting from said gears, fixed rods held by the frame of the loom in the path of said arms, whereby the oscillations of said gears are limited, a series of sliding jacks having teeth engaging said gears and notches adapted to be engaged by a pair of sliding knives, a pair of sliding knives engaging said toothed jacks, a bar held in the frame of the loom by which said jacks are raised out of engagement with one of said sliding knives, links connecting said oscillating gears with said pivoted levers, means for imparting a sliding motion to said knives,

and a pattern mechanism for carrying said jacks into engagement with said knives, substantially as described.

2. The combination with the frame of the loom, provided with slots forming ways for a, reciprocating knife-bar, and a reciprocating knife-bar moving in said slots, of detached bars forming one side of said slots and bladesprings attached at one end to the frame of the loom and at their opposite ends to said detached bars, whereby said bars are capable of yielding against the pressure of the knife-bar, substantially as described.

3. The combination of the shafts B and B, connecting-gears B, and B and clutching connection between said gears and said shaft B, eccentric gear 0, carried upon said shaft B, eccentric gear 0, rotating upon a stud held in the framework and carryinga crankplate G link C connectingjsaid crank-plate and oscillating arms, oscillating arms, links connecting said oscillating arms with the reciprocating knife bars, and reciprocating knife-bars engaging a series of jacks, and a series of jacks operatively connected with the harness-frames, substantially as described.

4:. The combination of the sliding toothed jacks D, segmental gears F, having radial arms F operatively connected with the harness-frames by intermediate mechanism, substantially as described, a pattern-chain-carrying shaft J, rotating shaft B, intermediate connecting mechanism, by which the rotation of the shaft B, is made to impart an intermittent rotary motion to the shaft J, substantially as described, a gear J carried upon the shaft B, and engaged by a driving-gear J provided with a hand-wheel J and a supporting-stud J all arranged and operating, substantially as set forth.

Dated at Worcester, in the county of Worcester and State of Massachusetts, this 26th day of April, 1892.

BAPTISTE HILBERT.

Witnesses:

RUFUS B. FOWLER, K. M. CARROLL. 

